Can-soldering machine.



F. P. MoGOLL. CAN SOLDERING MACHINE.

APPLIOATION FILED SEPT.15,1910.

Patented Feb. 11, 1913.

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CAN SOLDBRING MACHINE.

APPLICATION FILED SEPT.15,1910.

1,052,737. Patented Feb. 11, 1913.

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FRANCIS P. MCCOLL,.OF ST. ANDREWS, 'NEW STATES PATENT ornron.

Brionswicx, CANADA, ASSIGNOR 'ro AMERICAN KEY CAN COMPANY, OF CHICAGO,ILLINOIS, A CORPORATION OF NEW JERSEY.

CAN-SOLDERING MACHINE.

Specification of Letters Patent.

Patented Feb. 11, 1913.

Application filed September 15, 1910. Serial No. 582,175.

To all whom it may concern:

Be it known that I, F RANCIS P. MoCoLL,

St. Andrews, New Brunswick, Dominion of Canada, have invented a certainnew and useful Improvement in Can-Soldering Madeclare the following tobe a full, clear, and exact description of the same, such as will enableothers skilled in the art to which it pertains to make and use the same,reference being had to the accompanying drawings, which form a part ofthis specification.

My invention relates to the art of soldering, particularly to the art ofsoldering cans, and has for its object the provision of an apparatus bywhich heads may be soldered into cans quickly land efliciently.

A further object of my invention is the provision of an apparatus ormaehinefor soldering heads into cans which will permit the solderingoperation to be performed without wasting solder or defacing the .dec-

. orations on the can parts.

A further object of my invention is to provide an apparatus or a machineby which filled cans may be soldered without heating the contents andcreating internal pressures.

The various features of novelty whereby my invention is characterizedwill hereinafter be pointed out with particularity in the claims; butfor a full understanding of my invention and of its object andadvantages, reference may be had to the following detailed descriptiontaken in connection with the accompanying drawings, wherein Figure l isa view partly in side elevation and partly in section, illustrating oneform of apparatus for carrying out my invention;

' scale on line 2-3 of Fig. 1, these two figures illustrating differentpositions of the parts; Fig. 4; is a view looking down on Fig. 2; andFig. 5 is a section similar to Figs. 2 and 3 showing a modification.

Referring to Figs. 1 to 4 of the drawings; A is a receptacle forcontaining molten solder which is indicated at B. The member A may takeany suitable form, the solder may be supplied thereto in any suitableway and the temperature of the bath may be maintained by any usualmeans: all these features of themselves constituting no part of myinvention.

In accordance with my invention I pro- .having their upper surfacesarranged tween the guides ends of the finger underlying the vide meanswhereby the-cans or other parts to be soldered are caused to travelacross the bath and in close proximity thereto, together with means forproducing relative vertical movements between the solder and the membersto be soldered, without interrupting their travel. The extent of therelative movement is such as to cause the solder to engage with theparts to be soldered over minimum areas. -As the travel of the membersto be soldered continues, a relative vertical movement between them andthe solder in the reverse directionoccurs and the soldered members arethen carried away. By this means the solder is applied at just thepoints where it is desired and is given no opportunity to encroach uponparts of the cans or other devices which should be left tive movementbetween the cans and the solder is produced by causing the level of thesolder to rise automatically at a predetermined point in the travel ofthe cans and to recede again after that point has been passed. To thisend I have provided'parallel guidesC lyingin the solder bath andapproximately in the plane of, the solder. 4 Beand the sides of thesolder container are floats D which rest upon the solder, Above thefloats are levers E pivo ted as at 6 between the ends thereof onstationary brackets F.

G represents shoes hung upon the inner brackets as at 9' and extendingdown over" the guides. Each of the shoes is provided with a laterallyprojecting adjacent end of the corresponding lever. It will be seen thatwhen the shoes are swung away from each other, the fingers will engagewith the levers and swing them so as'to depress the floats. The shoesare made wedge-shaped so that the transverse distance'between theirfaces is less at one end than at the other. It will be seen that if thecan or other member of proper size and shape is moved along the clean.In the arrangement shown, the relaguides and into the flaring openingbetween The parts are so proportioned that when a p can of proper size15 carried along the the solder will risejust high enough guides,

effective joint between a head to make an resting upon the guides andthe can body.

WVhile the can is between the shoes the the cups are directed outwardly,such a can being, indicated at I. When such a can rests upon the guidesit is supported upon flanges i, 2" which project beyond the head proper,these flanges consisting of the sides of the cup-shaped head and theport-ions of the can body in contact therewith. As the solder rises inthe container it enters between the guides and beneath the can; but,because of the cup-shaped head, the air is pocketed beneath the can sothat the solder does not rise high enough to engage with the-mainportion of the head: This has sevration. .solder away from the head oferal advantages. In the first place a waste of solder is fpreventedbecause the solder on the inside 0 the flange rises to a less heightthan the solder on the outside; it being only necessary to have somesolder on the inside so as to permit it to be drawn in between the sidesof the head and the can body, any excess of solder which accumulates onthe external surface of the head being wasted. Again, by preventing thesolder from coming in contact with the head of the can the head will notbe'disfi'gured and it is therefore possible to solder a decorated headin place without danger of marring the deco- Furthermore -'by keepingthe hot ing of the contents of the can is avoided and therefore thereare no internal pressures, tending to disrupt the joint and produceleaks therein. I prefer to provide the head with a fin'which projectsslightly be yond the can body so as to give the solder ready access tothe engaging surfaces of the can body and head. A can of this kind maybe vfilled, the head pressed in place, and

' then soldered quickly and conveniently wlthout danger of loss of thecontents or leaks in the joint.

The raising of the surface of the solder is preferablyaccomplishedwithout stopping the travel of the cans so that the cans aredipped, as it were, and immediately withdrawn. 'This. movement of thecans may be effected by any suitable means. In the drawings I haveillustrated a 'conveyer K having can holders L, the parts being soproportioned that cans in the holders are carried progressively over andpast the the level thereof to rise,

the can, heati erned by bath. The holders are spaced far enough apart sothat each can is given time to be dipped and withdrawn before asuccessive can comes upon the guides. When the cans havepassed betweenthe shoes they may be disposed of in any suitable way. In thearrangement shown, the guides have their upper faces inclined, asindicated at C at the ends where-the cans leave the bath. By this meanseach can, after the solder has receded, travels up the inclines and willtherefore be held above the high level of the solder even though anothercan should enter the space between the shoesbefore the first can hascontainer.

In Fig. 5 I haveillustrated a different arrangement of the guides in thesoldercontainer, the guides here taking the form of rollers M. By usingrollers the friction between the moving parts is decreased.

passed completely over the While I have illustrated and described withparticularity only a single form of my invention I do not desire to belimited to the specific details so illustrated and described; but intendcovering all constructions and arrangements which fall within the'termsemployed in the definitions of my invention constituting the appendedclaims. lVhat I claim is:

1. In a soldering machine, a solder bath, means for carrying a can to besoldered across and in proximity to said bath, and means controlled bysaid can for causing the solder to rise in the bath into contact withthe can and to recede before the can has completed its travel across thebath.

In a soldering machine, a solder bath, means for supporting a part to besoldered above and in proximity to said bath, a device adapted toenter'the solder and cause and means govsaid part for controlling saiddevlce.

3. In a soldering machine, a solder bath, means for supporting a part tobe soldered above and inproximity to said bath, a floatsupported by saidbath, and means controlled by said partfor forcing the float into thebath so as to raise thelevel of the solder suiticiently to bring it intoengagement with said part.

4. In a soldering machine, a solder bath, means for carrying a part tobe soldered across and in proximity to said bath, a.

device adapted to enter the solder: so as to raise the level thereof,and means controlled by said part for'causing said device toenter thesolder during a portion of the travel of said part so as to cause thesolder to rise into contact with said part.

5. In a soldering machine, a solder bath, means for carrying apart'to'be soldered across and in proximity to said bath, a floatresting in said bath, and means controlled by said part for causing thefloat to he deguides extendin pressed during a portion of the travel ofsaid part so as to raise the level of the solder sufliciently to bringit.into engage- .ment with said part. c

.6. In a soldering machine, a solder bath, through said bath with theirupper'sur aces approximately in the 'plane of the upper surface of thebath, means for movlng a part to be soldered across said guides, andmeans controlled by.

.said part for causing the level of the solder to riseinto engagementwith said part during a portion of the traveling movement of said 'art.1 p

7. a soldering machine, a solder bath,

guides extending through saidbath and having their upper surfaces lyingapproximately in the .plane of the upper surface 0 the solder, ;a floatresting in said solder, means for moving a. part to be soldered acrosssaid. guides, and means arranged to.

be controlled by said said float during a portlon of the travel of saidpart so as to raise the level of the solder and bring thesolder intoengagement with said part.

8. In asoldering machine,'a solder bath, guides extending through saidbath and having their upper surfaceslying approximately in the lane ofthe upper surface of the solder, a cat resting in sald bath, levermechanism for depressing said float so as to raise the level. of thesolder, and nieans .ior movin 'a partto be soldered'across said part fordepressing I guides an into engagement with said lever mechanism sovasto cause said float to be v actuated.

' In testimony whereof, I sign this specification in the presence of twowitnesses.

' FRANCIS P. MoCOLL. Witnesses:

JESSIE M. PEABODY, F. T. ELDRIDGEH

